WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 441
WG82574L S LBA8
Manufacturer Part Number
WG82574L S LBA8
Description
Manufacturer
Intel
Datasheet
1.WG82574L_S_LBA8.pdf
(472 pages)
Specifications of WG82574L S LBA8
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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Design Considerations—82574 GbE Controller
13.6.1.4
13.6.1.4.1
13.6.1.4.2
Figure 73.
Layout Requirements
Board Impedance
The NC-SI signaling interface is a single-ended signaling environment with a target
board and trace impedance of 50 plus 20% and minus 10% is recommended. This
target impedance ensures optimal signal integrity and signal quality.
Trace Length Restrictions
Intel recommends a trace length maximum value from a board placement and routing
topology perspective of eight inches for direct connect applications
ensures that signal integrity and quality is preserved from a design perspective and
that compliance is met for the NC-SI electrical requirements.
NC-SI Trace Length Requirement for Direct Connect
For multi-drop applications
four inches. This keeps the overall length between the MC and the 82574 within the
specification.
82574
8 inches
(Figure
NC-SI_RXD(1:0)
NC-SI_TXD(1:0)
NC-SI_CRS_DV
74) the spacing recommendation is a maximum of
NC-SI_CLK_IN
NC-SI_TX_EN
External
MC
(Figure
73). This
441
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